Mononuclear Cell Separation
Mononuclear Cell Separation - Related Videos
04:11
Mononuclear Cell Isolation from Mouse Brain: A Density Gradient Centrifugation Technique to Isolate Brain Resident Mononuclear Cells
0 Views •
2023
In this video, we perform the isolation of mononuclear cells from a mouse’s brain using density gradient centrifugation. The isolated mononuclear cell suspension can be used for further downstream analysis.
05:01
Lamina Propria Mononuclear Cell Isolation: A Silica-based Density Gradient Centrifugation Technique to Obtain Mononuclear Cells from Murine Colon
0 Views •
2023
In this video, we demonstrate the isolation of lamina propria mononuclear cells from murine colonic tissue by enzymatic digestion using collagenase E and silica-based density separation media gradient separation. The isolated mononuclear cells can be used for subsequent downstream analysis.
03:14
Ex Vivo Expansion of Natural Killer Cells from Peripheral Blood Mononuclear Cells
0 Views •
2025
This video demonstrates a technique for the expansion of natural killer (NK) cells directly from peripheral blood mononuclear cells (PBMCs) using a feeder cell line. PBMCs are co-cultured with genetically modified lymphoblastoid feeder cells expressing membrane-bound interleukin-21 (mIL-21), and the culture is supplemented with the cytokines interleukin-2 (IL-2) and interleukin-15 (IL-15). Together, this cocktail of ligands leads to the prolonged expansion of NK cells with high purity.
03:25
Culturing of Activated T Cells from Human Peripheral Blood Mononuclear Cells
0 Views •
2025
In this video, we describe a protocol for human primary T cell activation. The incubation of naïve T cells with magnetic beads coated with anti-CD3 and anti-CD28 antibodies, followed by interleukin-2 or interleukin-15 treatment, leads to the activation of naïve T cells and their differentiation and proliferation into effector or memory T cells.
02:45
Isolation of Peripheral Blood Mononuclear Cells from Human Buffy Coats
0 Views •
2025
In this video, we demonstrate the isolation of peripheral blood mononuclear cells, PBMCs, containing monocytes and lymphocytes from a human buffy coat by density gradient centrifugation. The isolated PBMCs can be used for further analysis.
FAQs
The method relies on differential cell density during centrifugation. When a blood or biological sample is layered over a separation medium, cellular components move to different positions rather than remaining uniformly mixed. Mononuclear cells accumulate at a recognizable interface, whereas erythrocytes and granulocytes sediment separately. This physical partitioning creates an enriched fraction for subsequent cancer research analyses.
The interface marks the location where the desired enriched fraction can be recovered after centrifugation. Its position reflects the separation of mononuclear cells from erythrocytes and granulocytes. Collecting this region rather than the entire sample reduces the contribution of those other blood-cell populations, making immune profiling and functional measurements more focused.
Enrichment of the mononuclear fraction directs experiments toward lymphocytes and monocytes rather than the mixed cellular composition of the starting material. This is useful when investigators need to characterize immune responses, examine tumor microenvironment samples, or perform functional assays in which the contribution of these populations must be evaluated.
A basic workflow starts by layering the biological sample over a separation medium, followed by centrifugation. The resulting positions of the cell populations are then used to identify and recover the mononuclear interface. This sequence converts a mixed sample into an enriched population suitable for downstream analysis, including immune profiling, biomarker analysis, or functional assays.
Cancer researchers use the enriched cell population to study immune responses associated with tumors and to investigate the tumor microenvironment. The approach can support analysis of immune cells circulating in biological samples or infiltrating tumor-associated sites. It is therefore relevant to experiments examining relationships between immune cells and cancer cells.
These fractions can provide material for biomarker analysis, functional assays, and characterization of treatment-related effects. By focusing on lymphocytes and monocytes, investigators can assess changes in immune responses and examine how immune-cell populations interact with cancer cells. The resulting data help connect cellular composition with tumor biology and experimental treatment outcomes.